, this investigation still very much continuing. justice departments saying the suspect will not be readhismirandarights.they are invoking the public safety exception. it's allowed in cases of immediate danger. meanwhile mccain and lindsay graham said dzhokhar tsarnaev should be treated as a potential enemy combatant. they said now that the suspect is in custody is the last thing we should want is for him to remain silent. under a law of war we can hold the suspect to a enemy combatment not entitled to miranda warnings or the appointment of counsel. the older brother, he was killed on friday, and they investigated him at the request of a foreign government, and they did not find any ties to terrorism. and we are joined from london by a counterterrorism expert, and mike sullivan here is a former acting director of the bureau of tobacco, firearms and explosives. let's start with you in london, will. the fbi talked to this man in 2011. it does beg the question, did they miss something when they talked to tamerlan tsarnaev? >> well, it's always very difficult to say. however, having said that, if yo

are not readinghismirandarightsand what this means for you, when we come back. mb luck? or good decisions? ones i've made. ones we've all made. about marriage. children. money. about tomorrow. here's to good decisions. who matters most to you says the most about you. at massmutual we're owned by our policyowners, and they matter most to us. ready to plan for your family's future? we'll help you get there. your doctor will say get smart about your weight. that's why there's glucerna hunger smart shakes. they have carb steady, with carbs that digest slowly to help minimize blood sugar spikes. [ male announcer ] glucerna hunger smart. a smart way to help manage hunger and diabetes. [ children laughing ] ♪ ...is the smell of salt in the air. ♪ it's the sound a seashell makes. [ seagulls calling ] away...is a place that's beyond your imagination, yet well within your means. find your away. for a dealer and the rv that's right for you, visit gorving.com. >>> usa! usa! usa! usa! usa! usa! usa! >> that was the streets of boston and surrounding towns last night, clearly people so excited that

of public safety exception before you give himhismirandarights,all that talk of naming him as an enemy combatant, all of that is moot right now. they've gone forward with the official proceedings. >> well, they may have used the public safety exception, and apparently they were using it to question him, and he responded in some way given his medical condition. but certainly now that he has a lawyer, that period, however long it was, is over. and you're right, the enemy combatant thing was a nonstarter from the never going to happen. this is a criminal case in federal court in massachusetts, and that's where it will stay until it's resolved one way or another. >> it's going to take a while. thanks very much, jeffrey. much more on what's going on in this boston investigation coming up here in "the situation room" 0. >>> also, another terror plot released today, new information. canadian authorities announcing the arrest of two men believed to be part of a terror plot to attack a passenger train that may have been heading towards the united states, the plot said to have an alleged connect

-called public safety exception tothemirandarulewhere for some period of time, it's not entirely clear how long, a suspect can be questioned without miranda warnings and that apparently is what's happening here. again, it's complicated somewhat by the fact that we didn't know exactly what tsarnaev's medical condition is and how many questions he can answer. apparently he's answering some questions in writing. so i don't really see lindsey graham's proposal as all that differentwhat's going on now. he seems to suggest a longer process of questioning him, but the obama administration has also committed to some period of questioning. now, this all assumes that he's willing to answer questions. can he always samp simply say it answering questions and there is no way either under enemy combatant rules or in the criminal justice system to force someone to answer questions who doesn't want to answer them. >> the argument i guess is under this limited questioning period before he is formally advised of his miranda rights, he has and right to an attorney, doesn't have to answer any questions. there

dzhokhar tsarnaev to investigators, we do not know if that was before or after he receivedhismirandawarningsor before or after he obtained counsel. that's an excellent point. one of the things we do know that he is saying apparently is that it was his brother tamerlan who was the mastermind here. is that something that could be helpful to his defense if he was merely following his brother? >> well, it will be helpful to his defense in the sense of mitigating the penalty that he might end up suffering. from what i've read and what i've seen, he's clearly as culpable as his brother. the videos that they picked up, and the statements that he made to the driver of the suv, all would indicate that he was a willing participant in this crime, and also the fact that he fled from the scene would further indicate his willingness to participate in this crime. however, any influence that he might have suffered from his brother, his brother's influence on him, may again go to mitigate any penalty that might be imposed upon him. whether he ends up getting the death penalty or whether he ends up

are told he had not been givenhismirandarights.do you have any sense of whether he has this morning or how soon it will be before he does receive them? >> the -- the decision not to read miranda rights was made by the federal officials. this is a unique clause to the terrorism law that we've not dealt with at the local level before. so, we are standing by and watching that at this point in time to see how that develops. but, the lawyers are involved in the decision, and certainly we're very anxious to talk to him, and the investigators will be doing that as soon as possible. >> commissioner over the weekend i heard you say you believe you found evidence your offices did you believe that these brothers were planning some kind of another attack, or at least prepared for it. tell us about that. >> the two suspects were armed with handguns at the scene of the shoot-out. and there were multiple explosive devices, including a large one that was similar to the pressure cooker device that was found on boylston street. i saw that with my own eyes. i believe that the only reason that someone

was givenhismirandarights?>> we don't know as of yet. he has been readhismirandarights.but we don't know if this information came before or after. as you know there was a public safety exemption before he was read his miranda rights. so there was time when law enforcement had the opportunity to talk to him before he had quote/unquote lawyered up. but we don't know yet whether or not this information came before he said he understood his rights, or after. >> all right, jake tapper, terrific reporting. great to have you here this morning. >> thanks, john. >> don't miss "the lead" every day at 4:00. we're also learning more this morning about -- we're learning more this morning about criminal complaints against tsarnaev detailing step by step how the deadly attack on the boston marathon unfolded. our coverage continues this morning with miguel marquez outside best israel deaconess medical center right here in boston. good morning, miguel. >> good morning, john. this is the criminal complaint that contains what we expect are the first charges. we'll see many more against mr. tsarnaev.

department plans to begin questioning tsarnaev before reading himhismirandarights,saying investigators need immediate information on any attacks that may be in the works. the pressure is on to learn exactly where this trail of bloodshed began. >> reporter: this is jim axel rod in boston. for those who knew the tsarnaev brothers, the questions are personal. >> who would do something like this? >> not him. reporter: larry aaronson was once a teacher at the high school the younger brother, dzhokhar attended. >> i know this kid to be compassionate. i know this kid to be forth coming. he's a great athlete. he's a sportsman. he's never been in trouble. >> reporter: the two brothers who are ethnic chechens came to the u.s. with their family a decade ago. facing the vicious fighting... escaping the vicious fighting between the government and the largely chechen rebel. dzhokhar who became an american citizen on september 11 of last year is 19 years old. he was a student at the university of massachusetts dartmouth. his older brother tamerlan was 26 years old, married to an american woman with a

. just to confirm, this -- dzhokhar tsarnaev has not yet been readhismirandarights,correct? >> i have to say i don't know. because there was an initial appearance today, that's why this complaint is out. the circuit executive, the administrator of this area, has put out a statement saying there was an initial appearance before a magistrate judge. that is as far as i understand it an arraignment. i have never heard of an arraignment without an attorney present. they didn't mention an attorney present. if an attorney is present, the attorney will simply say to the client, you -- don't answer questions. at that point, the attorney is the person the prosecutor is supposed to deal with. i have to say, there is information out there that we don't have. whether an attorney was present, whether this was an actual arraignment, i think we just need to hold off on that until we get more information. >> we're holding off. still so early this all happened. >> before we let deb feyerick go and chase down that lead she was referring to, deb, i was wondering, is there anything else that stands out in